# DelayTool vs RazielReveal

The clearest difference is price: RazielReveal at Free against DelayTool's $0.99. RazielReveal also leads on update cadence (every 2 days vs every 23 months) and iOS requirement (17.0 vs 26.0). DelayTool's advantage is in-app purchases (none vs 4) and chart position (#200 vs unranked). On ads and device support there is nothing between them.

RazielReveal is free to download; DelayTool costs $0.99 up front. RazielReveal sells 4 in-app purchases, starting at $0.99 per 7 days. DelayTool asks for nothing beyond the download.

DelayTool ships an update every 23 months, RazielReveal every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DelayTool | RazielReveal |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/delaytool-bpm-calculator/id982070192/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 days** |
| Monetization | Paid | — |
| Best chart rank | **#200** | — |
| Size | 5 MB | 58 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joel Perry](https://appshunter.io/developer/972887837) | [Better World Studio](https://appshunter.io/developer/424394067) |

## What reviewers say

### DelayTool

[App page](https://appshunter.io/ios/app/delaytool-bpm-calculator/id982070192)

**Currently charting:** #200 Top Paid · Music (US App Store)

This application helps musicians and sound engineers calculate precise timing values for musical subdivisions. It automatically updates a table of milliseconds and Hertz based on the entered tempo, ideal for setting up delays and oscillators.

**Highlights:** BPM calculator, Tempo input and tap tempo, Automatic table updates, Calculates milliseconds and Hertz, Supports common musical subdivisions, Precise delay and oscillator setup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RazielReveal

[App page](https://appshunter.io/ios/app/razielreveal/id6796894139)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RazielReveal Premium | $0.99 | per 7 days |
| RazielReveal Premium | $1.99 | per month |
| RazielReveal Premium | $9.99 | per year |
| RazielReveal Premium Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is DelayTool free?

DelayTool costs $0.99, with no in-app purchases.

### Is RazielReveal free?

RazielReveal is free to download, with in-app purchases available.

### Do DelayTool or RazielReveal have ads?

Neither DelayTool nor RazielReveal shows ads.

### Which is updated more often, DelayTool or RazielReveal?

DelayTool ships an update every 23 months, and RazielReveal every 2 days. Most recently, DelayTool was updated on November 1, 2026 and RazielReveal on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*